421343403342113 has 16 divisors (see below), whose sum is σ = 483121299697920. Its totient is φ = 359962229442816.

The previous prime is 421343403342101. The next prime is 421343403342131. The reversal of 421343403342113 is 311243304343124.

It is not a de Polignac number, because 421343403342113 - 2¹⁶ = 421343403276577 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (421343403342313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12824756 + ... + 31735802.

It is an arithmetic number, because the mean of its divisors is an integer number (30195081231120).

Almost surely, 2^{421343403342113} is an apocalyptic number.

It is an amenable number.

421343403342113 is a deficient number, since it is larger than the sum of its proper divisors (61777896355807).

421343403342113 is a wasteful number, since it uses less digits than its factorization.

421343403342113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18921536.

The product of its (nonzero) digits is 248832, while the sum is 38.

Adding to 421343403342113 its reverse (311243304343124), we get a palindrome (732586707685237).

The spelling of 421343403342113 in words is "four hundred twenty-one trillion, three hundred forty-three billion, four hundred three million, three hundred forty-two thousand, one hundred thirteen".